Effect of Yttrium substitution on superconductivity in Bi-2212 textured rods prepared by a LFZ technique

Ozcelik, B. ; Nane, O. ; Sotelo, A. (Universidad de Zaragoza) ; Madre, M.A. (Universidad de Zaragoza)

Resumen: In this study, the physical and superconducting properties of the Bi2Sr2Ca1-xYxCu2O8+delta with x=0.0, 0.05, 0.075 0.1, and 0.20 textured superconducting rods prepared by a laser floating zone technique were presented. The effects of Y3+ substitution for Ca2+ have been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), dc-magnetization, magnetic hysteresis and critical current density calculation by using the Bean''s critical state model. The powder XRD patterns of the samples have shown the Bi-2212 phase is the major one. Along with the powder samples, the textured rod surfaces also were investigated by XRD. The grains found to be well-oriented along the longitudinal rod axis which is a typical result for superconductors prepared by laser floating zone (LFZ) method, has been observed. The best critical temperature, T-C, has been found as 92.9 K for the sample with 0.15Y substitution, under DC magnetic field of 50 Oe in ZFC mode. It has also been observed that the critical current density decreases with increasing Y-substitution. Using those values, the maximum J(C) value has been determined as 2.37 x 10(5) A/cm(2) for the undoped sample.

Idioma: Inglés

DOI: 10.1016/j.ceramint.2015.10.137

Año: 2016

Publicado en: Ceramics International 42, 2-B (2016), 3418-3423
ISSN: 0272-8842

Factor impacto JCR: 2.986 (2016)

Categ. JCR: MATERIALS SCIENCE, CHARACTERIZATION & TESTING rank: 2 / 26 = 0.077 (2016) - Q1 - T1
Categ. JCR: MATERIALS SCIENCE, CERAMICS rank: 2 / 26 = 0.077 (2016) - Q1 - T1

Factor impacto SCIMAGO: 0.843 - Electronic, Optical and Magnetic Materials (Q1) - Ceramics and Composites (Q1) - Surfaces, Coatings and Films (Q1) - Process Chemistry and Technology (Q1) - Materials Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/T12
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2013-46505-C3-1-R

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Área Cienc.Mater. Ingen.Metal. (Dpto. Ciencia Tecnol.Mater.Fl.)